JPS56120904A - Measuring method for rate of removal of coating film - Google Patents
Measuring method for rate of removal of coating filmInfo
- Publication number
- JPS56120904A JPS56120904A JP2571280A JP2571280A JPS56120904A JP S56120904 A JPS56120904 A JP S56120904A JP 2571280 A JP2571280 A JP 2571280A JP 2571280 A JP2571280 A JP 2571280A JP S56120904 A JPS56120904 A JP S56120904A
- Authority
- JP
- Japan
- Prior art keywords
- rate
- measured
- steel plate
- range
- removal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To enable judgement of the rate of removal of a coating film without causing any error in judgement by projecting a visible light flux whose wavelength is within the range of 400-700mum on a surface to be measured and by measuring the rate of diffused reflection of the flux. CONSTITUTION:A visible light emitted from a light source 1 and having wavelength in the range of 400-700mum is applied on the surface of a coated steel plate 3 to be measured through a lens 2, the diffused beam of light reflected from the surface of the coated steel plate 3 is condensed through a beam-condensing lens 5 and transduced into photoelectric current by a photoreceptor 6, the current is measured by a galvanometer 7, and, according to the amplitude of the current, the rate of removal of the coating film is judged. On the occasion, the device is constituted so that the angle of the center line of the light flux from the light source 1 to the surface of the coated steel plate 3 to be measured is in the range of 45+ or -5 deg. and that the angle of the surface of the steel plate 3 to the center line of the photoreceptor 6 is in the range of 90+ or -10 deg..
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2571280A JPS56120904A (en) | 1980-02-29 | 1980-02-29 | Measuring method for rate of removal of coating film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2571280A JPS56120904A (en) | 1980-02-29 | 1980-02-29 | Measuring method for rate of removal of coating film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56120904A true JPS56120904A (en) | 1981-09-22 |
Family
ID=12173397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2571280A Pending JPS56120904A (en) | 1980-02-29 | 1980-02-29 | Measuring method for rate of removal of coating film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56120904A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60244839A (en) * | 1984-05-19 | 1985-12-04 | Kureha Chem Ind Co Ltd | Material testing instrument |
JPS63200040A (en) * | 1987-01-22 | 1988-08-18 | カール・ツアイス―スチフツング | Diffuse reflectance measuring device for noncontact measurement |
FR2656465A1 (en) * | 1989-12-21 | 1991-06-28 | France Etat | METHOD FOR MEASURING THE DIMENSIONS OF A SPACER. |
WO2022202198A1 (en) * | 2021-03-25 | 2022-09-29 | ジャパンマリンユナイテッド株式会社 | Evaluation method and evaluation device for surface roughening of metal surface |
-
1980
- 1980-02-29 JP JP2571280A patent/JPS56120904A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60244839A (en) * | 1984-05-19 | 1985-12-04 | Kureha Chem Ind Co Ltd | Material testing instrument |
JPS63200040A (en) * | 1987-01-22 | 1988-08-18 | カール・ツアイス―スチフツング | Diffuse reflectance measuring device for noncontact measurement |
FR2656465A1 (en) * | 1989-12-21 | 1991-06-28 | France Etat | METHOD FOR MEASURING THE DIMENSIONS OF A SPACER. |
WO2022202198A1 (en) * | 2021-03-25 | 2022-09-29 | ジャパンマリンユナイテッド株式会社 | Evaluation method and evaluation device for surface roughening of metal surface |
JP2022149261A (en) * | 2021-03-25 | 2022-10-06 | ジャパンマリンユナイテッド株式会社 | Evaluation method and evaluation device for roughening of metal surface |
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